Odd Ball Vest Or Sleeveless Shell Pullover
You can wear this as either a vest or a sleeveless shell. It has a scoop neck in the front. If you plan to wear it as a shell, you can knit the back the same as the front if you wish for a scoop in the back as well.

Tuxedo Vest
This easy tuxedo style vest features centered points in the front.

Also see Knit A Bit, for patterns by Barbara Breiter including sweaters and vests